An al-Qaeda cell was days away from carrying out an "Easter spectacular" of co-ordinated suicide bomb attacks on shopping centres in Manchester, police believe.

Sources told The Daily Telegraph that the arrests of 12 men in the north west of England on Wednesday were linked to a suspected plan to launch a devastating attack this weekend.

Some of the suspects were watched by MI5 agents as they filmed themselves outside the Trafford Centre on the edge of Manchester, the Arndale Centre in the city centre, and the nearby St Ann's Square. Police were forced to round up the alleged plotters after they were overheard discussing dates, understood to include the Easter bank holiday, one of the busiest shopping weekends of the year.

"It could have been the next few days and they were talking about 10 days at the outside," one source said. "We had to act." Police are now engaged in a search for an alleged bomb factory, where explosives might have been assembled.

If such a plot was carried out, it would almost certainly have been Britain's worst terrorist attack, with the potential to cause more deaths than the suicide attacks of July 7, 2005, when 52 people were murdered.

A plan to arrest the suspects in a series of co-ordinated raids yesterday morning had to be hastily brought forward to Wednesday afternoon after the country's most senior anti-terrorism officer, Assistant Commissioner Bob Quick, of the Metropolitan Police, was photographed going into Downing Street carrying a briefing paper with top secret details of Operation Pathway in full view.

Yesterday morning, Mr Quick resigned after he was told by the Jacqui Smith, the Home Secretary, that he had lost her confidence and that of MI5.

As a result of his blunder, hundreds of police officers had to be scrambled to arrest the suspects, who were being monitored round the clock.

Former police chiefs pointed out that rounding up suspected suicide bombers in public places in Liverpool, Manchester and Clitheroe, Lancs, had put other people at risk and could also have compromised the operation.

Gordon Brown, the Prime Minister, described the alleged plot as "very big" and said investigators were looking at links with Pakistan.

Mr Brown said: "We know that there are links between terrorists in Britain and terrorists in Pakistan. That is an important issue for us to follow through and that's why I will be talking to President Zardari about what Pakistan can do to help us in the future."

All but one of the men arrested were Pakistani nationals who came to Britain on student visas. This suggested a possible new tactic by al-Qaeda, which had previously used British-based extremists who travelled to Pakistan for training.

The issue of student visas represents a potential security nightmare for the police and MI5. There are 330,000 foreign students in Britain and around 10,000 such visas are issued every year to Pakistanis alone.

Phil Woolas, the Immigration Minister, has described the student visa system as "the major loophole in Britain's border controls".

Several of the suspects who were being questioned last night, were from the al-Qaeda heartlands in Pakistan's border area with Afghanistan.

Peter Fahy, chief constable of Greater Manchester, said police had been forced to act to protect the public. Asked about al-Qaeda involvement, he added: "We know what is the nature of the threat to this country and where it comes from."

But he sought to reassure shoppers, and added: "I would like to say I would have no hesitation, or any of my family, in using any of those locations that have been mentioned."

The security services suspect that several of the men arrested were trained at religious schools in Pakistan and sent to launch suicide attacks on the West.

They were suspected to have Continued on Page 5 Continued from Page 1 chosen Easter as the most significant Christian holiday for an attack.

Police believe the suspects may have smuggled bomb-making equipment into the country and were ready to launch their attacks.

Yesterday, searches focused on a property in Highgate Street, Liverpool, although nothing "significant" had yet been found.

Sources said police had arrested the man they suspected was the ring-leader, Abid Naseer, 22, at an address in Galsworthy Avenue in Cheetham Hill, Manchester.

He is said to be from the tribal areas of Pakistan where the Taliban and al-Qaeda have established their base.

The alleged members of the cell had signed up for a range of student courses, while two were employed as security guards at a new Homebase store in Clitheroe, Lancs.

Among the locations raided on Wednesday afternoon was the Cyber Net Café in Cheetham Hill, where it is thought the men communicated using emails.

Security sources suspect they received their instructions from al-Qaeda commanders in Pakistan.

The leader of the Pakistan Taliban is Baitullah Mehsud, who last week claimed responsibility for an attack on a police compound in Lahore and promised to attack the West. At least one of the arrested men is from Mehsud's heartland of South Waziristan, sources in Pakistan said.

__________________
The peasant bourgeoisie and their self righteous inclinations are the wests cancer!

Gordon Brown is looking at links that connect them to Pakistan?.....They were college students from Pakistan on extended visas.....When is this government going to wake up and smell the crap its shoveling.

Browns time is up....hes a joke and hes whole cabinets joke.Its embarrassing!!!

Its as if him and his knobhead gang have pulled the blanket over their collective heads.

They have sprayed so much BS these last 12 months I think they have started to believe it themselves.....If they think the British public is going to buy it....then they are more deluded then I thought.

Are they so far up their own arses they think we will munch that horse?....its an insult to intelligence...it really is.

And if I have to hear that fish faced Scottish numpty speak about how hes the right person to fix the economy again.......Bloody hell...yeah thanks Mr PM....or should I say MR Ex-chancellor...wheres the buck stopped?

Labour?....wankers... the lot of them

__________________Some People say the most important thing
a fighter can have is heart.
show me a fighter who's nothing but heart,
and I'll show you a man waiting for a beating.كافر

Gordon Brown is looking at links that connect them to Pakistan?.....They were college students from Pakistan on extended visas.....When is this government going to wake up and smell the crap its shoveling.

Browns time is up....hes a joke and hes whole cabinets joke.Its embarrassing!!!

Its as if him and his knobhead gang have pulled the blanket over their collective heads.

They have sprayed so much BS these last 12 months I think they have started to believe it themselves.....If they think the British public is going to buy it....then they are more deluded then I thought.

Are they so far up their own arses they think we will munch that horse?....its an insult to intelligence...it really is.

And if I have to hear that fish faced Scottish numpty speak about how hes the right person to fix the economy again.......Bloody hell...yeah thanks Mr PM....or should I say MR Ex-chancellor...wheres the buck stopped?

Labour?....wankers... the lot of them

There is no doubt that the operation was a close save at best, but with the blundering of that CT cop, and the British Politicians (whom must have being advised by the Intel community??...) is vetting certain border controls more stringently, its a scary thought to how close the T's came to successfully hitting the UK again...